noun
an intersection or crossing of two tracts in the form of the letter X
• Derivationally related forms: ↑decussate, ↑chiasmal (for: ↑chiasm), ↑chiasmic (for: ↑chiasm), ↑chiasmatic (for: ↑chiasm)
• Hypernyms: ↑structure, ↑anatomical structure, ↑complex body part, ↑bodily structure, ↑body structure
• Hyponyms: ↑optic chiasma, ↑optic chiasm, ↑chiasma opticum
Useful english dictionary. 2012.